Regulating device for beater-rolls.



A. ADAMS. REGULATING DEVICE FOR BEATER ROLLS.

APPLICATION FILED MAR-7119M.

Patgnted Sept. 3, 1918 I' H"'TI T I LIJLLI LJ a a union.

MOI-HEARD A. ADAMS, OF SOUTH BREWER, MAINE, ASSIGNOR T0 EASTER-N MANU- FACTURING COMPANY, OF BANGOR, MAINE, A CORPORATION OF MAINE.

REGULATILNG DEVICE FOR IBEATER-ROLLS.

tarmac.

Specification of Letters Patent.

Patented Sept. 3, 1918.

Application filed March 7, 1917. Serial No. 153,036.

To all whom it may concern.

Be it known that I, ARCHIBALD A. ADAMS, a citizen of the United States, residing at South Brewer, in the county of Penobscot and State of Maine, have invented new and useful Improvements in Regulating Devices for Beater-Rolls, of which the following is a specification.

This invention relates to pulp-beating machines that are used in the manufacture of paper. The pulp is beaten in a'tub by two cooperative elements, one of which is commonly termed a beater-roll and the other of which is commonly termed abedplate? The bed-plate is arranged substantially flush with the bottom of-the beater-tub and the beater-roll is adjustable, toward and from the bed-plate. As the pulp undergoes the beating process'the coaction of the peripheral blades on the beater-roll and the and bed-plate must be diminished from time to time as the lumps of stock are reduced, to

disintegrate the fibers gradually. For this purpose it is customary to adjust the beaterroll bodily toward the bed-plate by moving the journals in which the shaft of the beaterroll has its bearings. The increments of adjusting movement are necessarily fine and must be gaged with great accuracy. Heretofore, apparatus of the character above described has not been provided with. any means for indicating thedegree or degrees of such adjusting movement, and the latter has been dependentupon the skill and experience of the attendant who makes the adjustment. Y

My present invention provides an indicator and operating mechanism therefor in combination with the mechanism by which the aforesaid adjusting movements of the beater-roll are effected. Such indicator is adapted to afford a visual indication from which the attendant may observe how much space separates the beater-roll from the bedplate, and by which he may be informed, when effecting an adjustment, how much adjusting movement has been efiected. One advantage of such combination is that the attendant, having specific instructions to effeet an adjustment of a prescribed number of' units of movement may carry out such instructions with accuracy under the guidance of the indicator, and no skill or experience in the art of preparing .pulp, or in the manipulation of the adjusting mechanism, is required in such cases.

The indicator that I prefer to use for the purpose stated would have a series of Wheels rotatable in opposite directions and each bearing a series of indicating symbols, the capacity of such indicating Wheels to rotate in opposite directions enabling the attendant to gage the retractory movement of the beater-r011 from the bed-plate as well as the. movement'of such roll toward the bed-plate. Thus the initial adjustment of the beaterroll and bed-plate may be determined according to the initial size of the lumps in the paper stock. The mechanism of the Well-known Veeder counter or odometer is suitable for my purpose and I have illustrated an indicator embodying such construction.

Of the accompanying drawings Figure 1 represents a longitudinal vertical section of the beater-tub of well-known construction, including a beater-roll, bedplate, back-fall, and midfeather.

Fig. 2 representsa side elevation, on a larger scale, of a portion of said tub, and includes mechanism for adjusting the beaterroll.

Fig. 3 represents a top plan view, on a larger scale than Fig. 2, of the indicator that is included in Fig. 2.

Fig. 4 represents an end elevation of the adjusting mechanism and indicator included in Fig. 2, the direction of view being from right to left. I

The same reference characters indicate the same parts wherever they occur.

The beater-tub indicated at .10 is provided with a midfeather 11 andlwith a back-fall .12. The bed-plate indicated at 13 is of wellknown construction, and is embedded in the bottom of the tub so that its blades will not unduly impede the flow of the stock. The beater-roll indicated. at 14 is also of wellknown construction. It is carried by a shaft 15 and may be driven by any suitable means in the direction indicated by the arrow, to cooperate with the bed-plate in disintegrating the fibrous lumps of paper stock, and to propel the contents of the tub over the backfall 12 and around the midfeather according to well-known practice.

The bearings for the shaft 15 of the beater-roll are indicated at 16, 16, and in.

. rotatable relatively to stationary supports 1 will be rotated and the beater-roll will be Mechanism is provided for rotating the nuts 21, 21 in unison, to raise or lower the bearings 16, 16 in unison. For this purpose each-nut is provided with a bevel gear portion 23. An operating shaft 24 is provided with pinions 25, 25, and these pinions coact respectively with the gear portions 23. A hand-wheel 26 is affixed to shaft 24.

As the hand-Wheel is turned in one direction or in the opposite direction the nuts 21 adjusted toward or from thebed-plate. The degree of adjusting movement of the beaterroll is relatively fine in proportion to the degree of rotary movement of the handwheel, the reduction being due for the most part to the screw-thread connection between the nuts 21 and rods 20 and being multiplied by the bevel gears and also by the lever effect of the bars 17.

The indicator is indicated as a whole at 30. It is mounted upon a suitable fixture 31, and its shaft 32 is provided with a sprocket-wheel 33. A chain 31 runs over sprocket-Wheel 33 and also over a driving sprocket-wheel 35, the latter being affixed to shaft 24. The indicator includes a series of indicating'wheels, in the present instance, four, and they are shown at a, Z), c, and d.

Inasmuch as the 1nd1cator embodles the construction of the well-known Veeder counter it will not be necessary to illustrate its structural details but it will be suiiicient to state that each wheel bears ten indicating symbols, comprising the scale of numerals 0 to 9. In such counters the symbols of the first indicating wheel usually represent tenths of units, while those of the second, third and fourth wheels represent respectively units, tens of units, and hundreds of units. In the present instance the ratio of gearing is such that one step of wheel a represents an adjusting movement of one onethousandth of an inch of the beater-roll toward and from the bed-plate.

I claim:

1. The combination with the beater-roll and bed-plate of a pulp-beating machine, of means arranged to adjust said beater-roll toward and from said bed-plate, and means, including a visual reversible indicator, ar-

ranged to be operated by said adjusting means to count and indicate increments of movement, of predetermined length, of said beater-roll toward and from said bed-plate.

2.The combination with the beater-roll and bed-plate of a pulp-beating machine, of means arranged to adjust said beater-roll toward and from said bed-plate, a counting device having indicating means adapted to count units of movement and indicate the number of such units and means arranged to be operated by said adjusting means to operate said' counting device.

In testimony whereof I have affixed my signature.

ARCHIBALD A. ADAMS.

Witness S. B. COPELAND. 

